<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>练习2</title>
</head>
<body>

    <form action="#" method="post">

        <table>
            <tr>
                <th>用户注册</th>
            </tr>

            <tr>
                <td>
                    <fieldset>
                        <legend>身份验证-必填信息</legend>
                        <table>
                            <tr>
                                <td>用户名</td>
                                <td><input type="text" name="username" placeholder="请输入用户名" /></td>
                            </tr>
                            <tr>
                                <td>密码</td>
                                <td><input type="password" name="password" /></td>
                            </tr>
                            <tr>
                                <td>确认密码</td>
                                <td><input type="password" name="repassword" /></td>
                            </tr>
                        </table>
                    </fieldset>
                </td>
            </tr>

            <tr>
                <td>
                    <fieldset>
                        <legend>身份验证-必填信息</legend>
                        <table>
                            <tr>
                                <td>用户名</td>
                                <td><input type="text" name="username" placeholder="请输入用户名" /></td>
                            </tr>
                            <tr>
                                <td>密码</td>
                                <td><input type="password" name="password" /></td>
                            </tr>
                            <tr>
                                <td>确认密码</td>
                                <td><input type="password" name="repassword" /></td>
                            </tr>
                        </table>
                    </fieldset>
                </td>
            </tr>

            <tr>
                <td>
                    <fieldset>
                        <legend>身份验证-必填信息</legend>
                        <table>
                            <tr>
                                <td>用户名</td>
                                <td><input type="text" name="username" placeholder="请输入用户名" /></td>
                            </tr>
                            <tr>
                                <td>密码</td>
                                <td><input type="password" name="password" /></td>
                            </tr>
                            <tr>
                                <td>确认密码</td>
                                <td><input type="password" name="repassword" /></td>
                            </tr>
                        </table>
                    </fieldset>
                </td>
            </tr>

            <tr>
                <td align="center">
                    <input type="submit" value="提交资料">
                    <input type="reset" value="重置资料">
                </td>
            </tr>
            <tr>
                <td align="center"><input type="button" disabled value="失效按钮"></td>
            </tr>
        </table>

    </form>

</body>
</html>